Bloomfield 8730 Specification

PRINTED IN UNITED STATES OF AMERICA

765

OWNERS MANUAL

for

COFFEE GRINDER

MODEL:

8730

Includes:

Installation

Operation

Use & Care

Servicing Instructions

Model 8730

Coffee Grinder

p/n 70385 Rev. A ECN-12617 M765 040212 cps

NOTE: For your protection, please note that equipment in

this shipment was carefully inspected and packaged by

skilled personnel before leaving the factory.

Upon acceptance of this shipment, the transportation

company assumes full responsibility for its safe delivery.

IF SHIPMENT ARRIVES DAMAGED:

1. VISIBLE LOSS OR DAMAGE: Be certain that any

visible loss or damage is noted on the freight bill

or express receipt, and that the note of loss or damage

is signed by the delivery person.

2. FILE CLAIM FOR DAMAGE IMMEDIATELY:

Regardless of the extent of the damage.

3. CONCEALED LOSS OR DAMAGE: if damage is

unnoticed until the merchandise is unpacked, notify the

transportation company or carrier immediately, and file

“CONCEALED DAMAGE” claim with them. This

must be done within fifteen (15) days from the date the

delivery was made to you. Be sure to retain the

container for inspection.

Bloomfield Industries cannot assume liability for damage or

loss incurred in transit. We will, however, at your request,

supply you with the necessary documents to support your

claim.

WARRANTY STATEMENT

SERVICE POLICY AND PROCEDURE GUIDE

ADDITIONAL WARRANTY EXCLUSIONS

SHIPPING DAMAGE CLAIMS PROCEDURE

1. Resetting of safety thermostats, circuit breakers,

overload protectors, or fuse replacements unless

warranted conditions are the cause.

2. All problems due to operation at voltages other than

specified on equipment nameplates; conversion to

correct voltage must be the customer’s responsibility.

3. All problems due to electrical connections not made in

accordance with electrical code requirements and

wiring diagrams supplied with the equipment.

4. Replacement of items subject to normal wear, to include

such items as knobs and light bulbs. Normal maintenance

functions including adjustment of thermostats, microswitches,

and replacement of fuses and indicating lights are not

covered under warranty.

5. All problems due to inadequate water supply, such as

fluctuating, or high or low water pressure.

6. All problems due to mineral/calcium deposits, or

contamination from chlorides/chlorines. De-liming is

considered a preventative maintenance function and is

not covered by warranty.

All electrical equipment manufactured by BLOOMFIELD

INDUSTRIES is warranted against defects in materials and

workmanship for a period of one year from the date of original

installation or eighteen (18) months from the date of shipment

from our factory, whichever comes first, and is for the benefit

of the original purchaser, except that:

a. airpots carry a 30 day parts warranty only.

b. dispensers; i.e., tea and coffee carry a 90 days parts

warranty only, excludes decanters.

THE FOREGOING OBLIGATION IS EXPRESSLY GIVEN IN

LIEU OF ANY OTHER WARRANTIES, EXPRESSED OR

IMPLIED, INCLUDING ANY IMPLIED WARRANTY OF

MERCHANTABILITY OR FITNESS FOR A PARTICULAR

PURPOSE, WHICH ARE HEREBY EXCLUDED.

BLOOMFIELD INDUSTRIES DIVISION / SPECIALTY

EQUIPMENT MANUFACTURING CORPORATION SHALL

NOT BE LIABLE FOR INDIRECT, INCIDENTAL OR

CONSEQUENTIAL DAMAGES OR LOSSES FROM ANY

CAUSE WHATSOEVER.

This warranty is void if it is determined that upon inspection by

an Authorized Service Agency that the equipment has been

modified, misused, misapplied, improperly installed, or

damaged in transit or by fire, flood or act of God.

It also does not apply if the serial nameplate has been

removed or unauthorized service personnel perform service.

The prices charged by Bloomfield Industries for its products

are based upon the limitations in this warranty. Seller’s

obligation under this warranty is limited to the repair of defects

without charge by a Bloomfield Industries Authorized Service

Agency or one of its sub-agencies. This service will be

provided on customer’s premises for non-portable models.

Portable models (a device with a cord and plug) must be

taken or shipped to the closest Authorized Service Agency,

transportation charges prepaid, for services.

In addition to restrictions contained in this warranty, specific

limitations are shown below (Additional Warranty Exclusions).

Bloomfield Industries Authorized Service Agencies are located

in principal cities.

This warranty is valid in the United States and void elsewhere.

Please consult your classified telephone directory or your food

service equipment dealer; or, for information and other details

concerning warranty, write to:

Service Parts Department

Bloomfield Industries

P.O. Box 280

Verdi, NV 89439

Phone: (775) 689-5700 Fax: (888) 492-2783

7. Full use, care and maintenance instructions are supplied

with each machine. Those miscellaneous adjustments

noted are customer responsibility. Proper attention will

prolong the life of the machine.

8. Travel mileage is limited to sixty (60) miles from an

authorized Service Agency or one of its sub-agencies.

9. All labor shall be performed during normal working hours.

Overtime premium shall be charged to the customer.

10. All genuine Bloomfield replacement parts are warranted

for ninety (90) days from date of purchase on non-

warranted equipment. Any use of non-genuine

Bloomfield parts completely voids any warranty.

11. Installation, labor and job check-out are not considered

warranty.

12. Charges incurred by delays, waiting time or operating

restrictions that hinder the service technicians ability

to perform services are not covered by warranty.

This includes institutional and correctional facilities.

xi

MODEL STYLE VOLTS WATTS

AMPS

1ø

POWER SUPPLY

CORD

8730

120 375 3.1 NEMA 5-15P

240 375 1.6 VARIOUS*

Single Grinder

1

TABLE OF CONTENTS

SPECIFICATIONS

Thank You for purchasing this

Bloomfield Industries appliance.

Proper installation, professional

operation and consistent

maintenance of this appliance will

ensure that it gives you the very

best performance and a long,

economical service life.

This manual contains the

information needed to properly

install this appliance, and to use,

care for and maintain or repair the

appliance in a manner which will

ensure its optimum performance.

WARRANTY STATEMENT xi

SPECIFICATIONS 1

FEATURES & OPERATING CONTROLS 2

PRECAUTIONS & GENERAL INFORMATION 3

AGENCY LISTING INFORMATION 3

INSTALLATION INSTRUCTIONS 4

OPERATION 6

CLEANING INSTRUCTIONS 7

SERVICING INSTRUCTIONS 8

WIRING DIAGRAMS 9

EXPLODED VIEW & PARTS LIST 10

APPLICABILITY

This manual applies to the following Bloomfield Industries products:

8730, with or without suffix

* contact factory for specific application

FEATURES AND OPERATING CONTROLS

2

Fig. 1 Model 8730 Features & Operating Controls

PRECAUTIONS AND GENERAL INFORMATION

3

WARNING: ELECTRIC SHOCK HAZARD

All servicing requiring access to non-insulated components must be performed by qualified

service personnel. Do not open any access panels which require the use of tools.

Failure to heed this warning can result in electrical shock.

WARNING: INJURY HAZARD

All installation procedures must be performed by qualified personnel with full knowledge of all

applicable electrical codes. Failure could result in property damage and personal injury.

This appliance is intended for commercial use only.

This appliance is intended for grinding coffee beans. No other

use is recommended or authorized by the manufacturer or its

agents.

This appliance is intended for use in commercial establishments,

where all operators are familiar with the appliance use,

limitations and associated hazards. Operating instructions and

warnings must be read and understood by all operators and

users.

Except as noted, this piece of equipment is made in the USA

and has American sizes on hardware. All metric conversions

are approximate and can vary in size.

The following trouble shooting, component views and parts lists

are included for general reference, and are intended for use by

qualified service personnel.

This manual should be considered a permanent part of this

appliance. The manual must remain with the appliance if it is

sold or moved to another location.

120V model of this grinder is listed under UL file E98380.

CAUTION:

EQUIPMENT DAMAGE

DO NOT plug in or energize this

appliance until all Installation

Instructions are read and followed.

Damage to the grinder will occur if

these instructions are not followed.

CAUTION:

CUT / PINCH HAZARD

DO NOT reach into the hopper

or discharge chute without first

unplugging the unit from electric

power.

AGENCY LISTING INFORMATION

INSTALLATION

4

READ THIS CAREFULLY BEFORE STARTING THE INSTALLATION

Unpack the unit. Inspect all components for completeness and

condition. Ensure that all packing materials have been removed

from the unit.

LEVELING THE UNIT

Verify that an adjustable leg is installed at each corner of the

grinder.

Set grinder in its operating location. Level the grinder. A spirit

level should be placed on the top of the unit, at the edge, as a

guide when making level adjustments.

Level the unit from left to right and front to back by turning the

adjustable feet. Be sure all four feet touch the counter to prevent

tipping.

ELECTRICIAN’S INSTALLATION INSTRUCTIONS

IMPORTANT:

Supply power must match nameplate for voltage and phase.

Connecting to the wrong voltage will damage the brewer or result

in decreased performance. Such damage is not covered by

warranty.

IMPORTANT:

The ground prong of the plug is part of a system designed to

protect you from electrical shock in the event of internal damage.

Never cut off the ground prong nor twist a blade to fit an existing

receptacle. Contact a licensed electrician to install the proper

circuit and receptacle.

REFER TO ELECTRICAL SPECIFICATIONS - Page 1

Check the nameplate to determine correct electrical service

required for the grinder to be installed.

Models 8730 are equipped with a cord and plug.

120V units require a 115 - 125 volt 20 amp circuit (50/60 Hz,

2 wire plus ground, with NEMA 5-15R or 5-20R Receptacle).

220V and 240V units require an appropriate circuit (50/60 Hz,

2-wire plus ground).

CAUTION:

ELECTRICAL

DAMAGE

DO NOT plug in or energize this

appliance until all Installation

Instructions are read and

followed. Damage to the

grinder may occur if these

instructions are not followed.

CAUTION:

UNSTABLE

EQUIPMENT HAZARD

It is very important for safety

and for proper operation that the

grinder is level and stable when

standing in its final operating

position. Provided adjustable,

non-skid feet must be installed

at each corner of the unit.

Failure to do so will result in

movement of the brewer which

can cause personal Injury and/

or damage to grinder.

WARNING:

SHOCK HAZARD

Grinder must be properly

grounded to prevent possible

shock hazard. Electrical shock

will cause death or serious

injury.

INSTALLATION (continued)

5

INITIAL ADJUSTMENTS

The grinder is factory set to deliver the proper amount of ground

coffee for a standard 64 oz. brew. The grinder is set to normal

fine grind specifications. Both throw weight and grind are

adjustable to customer requirements.

A. ADJUST THROW WEIGHT

The amount of coffee per brew determines the strength of

the brewed coffee. The grinder controls the amount of

ground coffee delivered by controlling the grind time. The

timer has two ranges:

.75 seconds to 15 seconds; and, 3 seconds to 60 seconds.

Fill the hopper with coffee beans. Access the timer by

removing the 2” access plug under the grind head.

Select the proper range.

Increase time by turning the control knob clockwise.

Decrease time by turning the control knob counter-clockwise.

B. ADJUST GRIND

The coarseness of the grind has a significant effect on the

flavor and richness of the brewed coffee. The grinder can be

adjusted in 12 stages between very fine and regular grinds.

Fill the hopper with coffee beans. Access the grinder

adjustment by removing the front access panel.

Turn the head clockwise for a finer grind, counterclockwise

for a coarser grind. Be sure the head snaps into one of the

detents.

Fig. 2 Adjustment Access

SUGGESTIONS:

Bloomfield recommends that

throw weight be measured with

a digital gram scale.

Consult with your coffee roaster

for recommended grind and

throw weight. Then, adjust to

taste for your particular

application.

For later reference, when the

desired taste is achieved, write

the throw weight, timer setting

and grinder setting on the inside

of the access panel.

Be sure to reinstall access

panels when finished adjusting

the grinder.

OPERATION

NORMAL OPERATION

Fill the hopper with coffee beans.

Place the appropriate filter paper in your brewer’s brew chamber. Slide

the brew chamber under the grind head on the guide rails.

Press the start button. When the grinder stops, remove the brew

chamber and proceed with your normal brew sequence.

GRINDER PROTECTION DEVICES

The grinder is equipped with a circuit breaker and a shear dish to

protect the motor and grinder burrs in the event of a jam or solid object

entering the grind head.

If the grinder does not operate when the start button is pressed, the

circuit breaker may be tripped. The circuit breaker is located on the

back of the grinder, near the power cord inlet. When tripped, the

center pin of the breaker will “pop” out approximately 1/4”. Press the

pin straight in until it “clicks” to reset.

If the grinder motor runs but the grinder does not grind coffee, the

shear disk may have released. Refer to maintenance procedures for

shear disk replacement.

CAUTION:

CUT / PINCH

HAZARD

DO NOT reach into the

hopper or discharge chute

without first unplugging the

unit from electric power.

Fig. 3 Grinder Operation

IMPORTANT:

Before resetting the circuit

breaker or replacing the

shear disk, endeavor to

locate and clear the source

of the jam. Unplug the

grinder from electric power

before reaching into the

hopper or discharge chute.

Fig 4. Reset Circuit

Breaker

6

CLEANING INSTRUCTIONS

PROCEDURE: Clean Coffee Grinder

PRECAUTIONS: Disconnect grinder from electric power.

FREQUENCY: Weekly

TOOLS: Mild Detergent, Clean Soft Cloth or Sponge

Soft Bristle Brush

1. Disconnect grinder from electric power.

Empty beans from hopper.

Remove any remaining brew chamber from under grind head.

2. Wipe grounds, solids and any remaining beans from the

hopper.

3. Using a soft bristle brush, brush any remaining coffee

grounds from the discharge chute of the grind head.

4. Wipe inside of hopper and area around the grind head

with a soft clean cloth or sponge moistened with clean water

and mild detergent.

5. Rinse with clean water and allow to air dry.

6. Wipe the exterior of the grinder with a soft clean cloth or

sponge moistened with clean water. Allow to air dry

7. Plug grinder into electric power. Refill hopper with fresh

beans.

Procedure is complete

CAUTION:

SHOCK HAZARD

Do not submerge or immerse

grinder in water.

IMPORTANT:

DO NOT use steel wool, sharp

objects, or caustic, abrasive or

chlorinated cleansers to clean

the grinder.

7

SERVICING INSTRUCTIONS

ADJUST GRINDER BURRS

After replacing grinder burrs, or to compensate for wear from

extended use, it may be necessary to adjust the burrs.

Empty the hopper and run the grinder until there are no more

beans in the burrs. Remove the front access panel.

Note the position of the grind adjustment. Turn the adjustment

head fully clockwise (fine grind) until it is against the stop.

Using a 9/16” box-end wrench to loosen the jam nut. Use a large

flat-head screw driver to turn the adjustment screw one full turn

counter-clockwise.

Press the start switch. Slowly turn the adjustment screw

clockwise until the burr teeth just begin to click. Then, turn the

adjustment screw counterclockwise 1/8 turn, or until the clicking

stops.

Tighten the jam nut while holding the adjustment screw from

turning. The grinder is now set to the finest grind.

Return the adjustment head to its original position. Refill the

hopper and run several tests to be sure the grind is satisfactory.

Adjust as necessary.

REPLACE SHEAR DISK

Unplug the grinder from electric power. Empty the hopper.

Remove the front access panel.

Using a 1/2” socket, remove two hex bolts holding grinder

adjustment head to grinder body.

Remove shear disk cover and broken pieces of shear disk.

Withdraw the feedworm and burr assembly. Clean the inside of

the grinder head and grinder adjustment head. Be sure that no

debris or foreign objects remain in the surface of the burr plates.

Slide the feedworm back onto the motor shaft. Turn the shear

drive so that it engages the motor shaft.

Align the slot in the feedworm with the slot in the shear drive.

Insert a new shear disk and replace the shear cover.

Reinstall grinder adjustment head. If replacing the wooden plug,

be sure to install it so that the flat end is toward the shear cover.

Be sure it is properly aligned and the bolts are securely tightened.

Reconnect to electric power. Refill the hopper and run several

tests to be sure the grind is satisfactory. Adjust as necessary.

8

Fig. 5 Adjust Burrs

Fig. 6 Replace Shear Disk

WIRING DIAGRAM

9

EXPLODED VIEW & PARTS LIST

10

8730 CABINET AND ASSOCIATED COMPONENTS

EXPLODED VIEW & PARTS LIST (continued)

11

8730 MOTOR & GRINDER COMPONENTS

PRINTED IN UNITED STATES OF AMERICA

Bloomfield Industries, Inc.

Division of Carrier Commercial Refrigeration

In US and Canada

Telephone:

775-689-5700

Fax:

888-492-2783

Fax:

800-356-5142

()

website:

www.wellsbloomfield.com

for

orders

only

Bloomfield Industries proudly supports CFESA

Commercial Food Equipment Service Association

Bloomfield 8730 Specification

This manual is also suitable for

Bloomfield 8730 Specification

Other documents